20021397

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{20921}}^1$

素因数の和:20964

約数の個数: 16

約数和(自身を含む): 30127680

約数和(自身を除く): 10106283

約数列:

[1, 3, 11, 29, 33, 87, 319, 957, 20921, 62763, 230131, 606709, 690393, 1820127, 6673799, 20021397]

約数ペア:

[(1, 20021397), (3, 6673799), (11, 1820127), (29, 690393), (33, 606709), (87, 230131), (319, 62763), (957, 20921)]